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Subject: Re: positions when deep thought blundered

Author: Vincent Diepeveen

Date: 14:11:38 08/20/02

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On August 20, 2002 at 17:02:52, Uri Blass wrote:

i tried experimental version which i'm busy improving (it sucks still
as some features not yet turned on).

24 seconds at 12 processors:

++ c4-c5
00:00  30130 30k 0 0 3917 (12) 4 (8,95)0.195 c4-c5 Nc1xa2 Rf8xf5 e5-e4
00:00  33795 34k 0 0 7097 (12) 5 (13,150)0.610 c4-c5 Nc1xa2 Rf8xf5 Ra7-a5 Rf5-f2
Ra5xc5 Rf2xa2 Rc5xd5
++ d6-b5
00:00  41678 42k 0 0 13337 (12) 5 (25,207)0.655 Nd6-b5 Ra7-d7 Kg1-f2 Nc1xa2
Nb5xa3
00:00  44579 45k 0 0 21844 (12) 6 (44,324)0.640 Nd6-b5 Ra7-b7 Rf8-e8 e5-e4 g2-g4
Rb7-d7
00:01  48818 49k 0 0 55653 (12) 7 (90,770)0.880 Nd6-b5 Ra7-f7 Rf8-e8 e5-e4 c4-c5
Nc1xa2 Nb5xa3
00:02  58231 58k 0 0 129274 (12) 8 (181,1676)0.841 Nd6-b5 Ra7-b7 Nb5xa3 Rb7-a7
d5-d6 Ra7xa3 d6-d7 Ra3-d3 d7-d8Q Rd3xd8 Rf8xd8 Nc1xa2
00:04  74311 74k 0 0 314336 (12) 9 (455,3962)0.883 Nd6-b5 Ra7-b7 Nb5xa3 Rb7-b2
d5-d6 Rb2-d2 Na3-b5 Rd2-d1 Kg1-f2 Nc1xa2
00:07  93358 93k 0 0 672184 (12) 10 (886,7777)0.895 Nd6-b5 Ra7-b7 d5-d6 Nc1xa2
Nb5xa3 e5-e4 Kg1-f2 Na2-b4 Na3-b5 Rb7-d7
++ f8-f5
00:10 130246 130k 0 0 1414472 (12) 10 (2097,14455)1.098 Rf8xf5 Ra7-d7 Rf5-f1
Nc1-e2 Kg1-f2 Ne2-c3 Nd6-b5 Nc3xb5 c4xb5 Rd7-d6 Rf1-d1
00:22 149198 149k 0 0 3418130 (12) 11 (6194,36443)0.956 Rf8xf5 Nc1xa2 h2-h4
h7-h6 Rf5xe5 Na2-c1 h4-h5 Kg6-h7 Re5-e1 Nc1-b3 Nd6-b5 Ra7-a8
++ d6-b5
00:24 154615 155k 0 0 3839093 (12) 11 (6660,41280)0.963 Nd6-b5 Ra7-d7 d5-d6
Nc1xa2 c4-c5 Na2-b4 Nb5xa3 Rd7-a7 Na3-c4 Nb4-d3 g2-g3 Nd3xc5 Nc4xe5 Kg6-g5
00:35 186732 187k 0 0 6614062 (12) 12 (9254,58681)1.103 Nd6-b5 Ra7-d7 Rf8-e8
e5-e4 Re8-e6 Kg6-g5 d5-d6 Rd7-d8 Re6-e7 Kg5-f6 c4-c5 Rd8-b8 Nb5xa3 Nc1xa2
01:10 219954 220k 0 0 15398981 (12) 13 (17204,111696)1.005 Nd6-b5 Ra7-d7 d5-d6
Nc1xa2 c4-c5 Na2-b4 Nb5xa3 Rd7-a7 Na3-c4 Nb4-d3 g2-g4 Ra7-a1 Kg1-g2 Ra1-a2
Kg2-g1 f5xg4

Only used 400MB hash

>I include only gam,es from 1993
>
>Deep Blue - Hamann,S
>5R2/r5pp/3N2k1/3Ppp2/2P5/p7/P5PP/2n3K1 w - - 0 38 bm Nb5
>
>Note that at that time the position was tested on other programs and no program
>could find Nb5 in 15 minutes but today chess programs are better and have no
>problem to find Nb5
>
>8/r5pp/3N2k1/3PpR2/2P5/p7/n5PP/6K1 w - - 0 39 am Rxe5 bm Rf3 (I am not sure if
>h4 is enough for a draw because of h5)
>
>Deep Blue - Kristensen,B
>r1b2rk1/ppppnppp/2n3q1/1N6/2B1P3/2P1b3/PP3PPP/RN1Q1RK1 w - - 0 1 bm fxe3
>
>
>
>
>Kristiansen,J - Deep Blue
>1r5r/5ppk/ppppqP1p/4p1PR/P1P1P2P/1P4Q1/2P3R1/7K b - - 0 35 bm Kg8



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